结果显示,覆土厚度大大超出设计厚度是造成箱涵垮塌的根本原因。
The results show that the basic causation of the collapse is that the thickness of the soil coverage is far beyond that of the design.
在钻进过程中,应随时清理孔口积土,遇到塌孔、缩孔等异常情况,应及时研究解决。
In the drilling process, should be kept clean hole soil, encountered hole collapse, shrinkage and other abnormal situations, timely solution.
在钻进过程中,应随时清理孔口积土,遇到塌孔、缩孔等异常情况,应及时研究解决。
In the drilling process, should be kept clean hole soil, encountered hole collapse, shrinkage and other abnormal situations, timely solution.
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